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From: Ben Harris <bjh21@netbsd.org>
Subject: CVS commit: src/sys/arch/arm/arm
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Date: Fri, 16 Jan 2009 10:28:24 +0000 (UTC)
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Module Name:	src
Committed By:	bjh21
Date:		Fri Jan 16 10:28:24 UTC 2009

Modified Files:
	src/sys/arch/arm/arm: lock_cas.S

Log Message:
Simplify the pre-ARMv6 code.  Specifically:
 * Take advantage of conditional instructions to avoid branching.
 * Tweak register allocation to remove some MOVs from the debug code.
 * In the debug code, only the address of the counter varies between
   the success and failure cases, so make the rest of the code common.

Also correct the initial comment: _lock_cas returns the old value, not a
boolean.


To generate a diff of this commit:
cvs rdiff -r1.5 -r1.6 src/sys/arch/arm/arm/lock_cas.S

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.